: Likely shorthand for One Piece Film: Red or another "One Piece" movie ( OP is the standard abbreviation for One Piece).
: Refers to the resolution ( 360p ) and quality ( Standard Definition ). This is a lower-resolution file designed for smaller screens or slower internet connections. .mp4 : The standard digital video file format. gateanime-com-op-filme-s-bd-360sd-mp4
The text you provided appears to be a for an anime movie. Based on the structure of the string, : Likely shorthand for One Piece Film: Red
: Refers to GateAnime , a website that hosts anime content for streaming or download. : Refers to GateAnime